addition
əˈdɪʃən
Definition Synonyms

Definition of addition - Reverso English Dictionary

Noun

1.
mathematicsmathematical process of adding numbers
  • Children learn addition before multiplication..
summation total
2.
objectsomething added
  • The new wing was a necessary addition to the hospital..
supplement
3.
constructionpart added to a building or land
  • They built an addition to the house for extra space.
annex extension wing
4.
chemistryTECH.reaction forming a larger molecule in chemistryTECH.
  • The addition reaction created a new compound.
formation synthesis
Add a suggestion |

Images of addition

  • addition: part added to a building or land
    part added to a building or land

Expressions with addition

💡 Discover popular phrases, idioms, collocations, or phrasal verbs. Click any expression to learn more, listen to its pronunciation, or save it to your favorites.
as well as something else
In addition to the cake, we have cookies.
something new that is happily received
The new park was a welcome addition to the neighborhood.
used to introduce another item
The package includes a book. In addition, there is a DVD.
new member recently welcomed into a household or close family group
Their new baby is the latest addition to the family.
chemical reaction where molecules combine to form a larger molecule
In an addition reaction, two or more reactants form a single product..
mathematical operation adding two matrices
Matrix addition is used in computer graphics.

Origin of addition

Latin, additio (adding to)

Terms with addition included in their meaning

💡 A powerful way to uncover related words, idioms, and expressions linked by the same idea — and explore meaning beyond exact word matches.
additional
one more in addition to the current one
tooadv.
addition
in addition or also
addedadj.
addition
extra or additional to the original
elseadj.
additional
in addition to what was mentioned
elseadv.
additional
in addition to what was mentioned
plusprep.
extra item
in addition to
addition
in addition to something or someone
addition
additional person or thing

Examples of addition in a sentence

  • He solved the addition problem quickly.
  • The software update was a useful addition.
  • The new member was a great addition to the team.
  • The addition to the school included a new gym.
  • They planned an addition to the garden area.
  • The chemist explained the addition process in detail.

View all translations of addition

Click below to see the appropriate translations facing each meaning.
  1. French:addition, ajout, ...
  2. German:Addition, Ergänzung, ...
  3. Italian:addizione, aggiunta, ...
  4. Spanish:suma, agregado, ...
  5. Portuguese:adição, acréscimo, ...
  6. Chinese:加法, 附加, ...
  7. Japanese:足し算, 追加物, ...
  8. Arabic:جَمْع, إضافة, ...
  9. Hebrew:חִיבּוּר, תוֹסֶפֶת, ...
  10. Russian:сложение, прибавление, ...
  11. Ukrainian:додавання, додаток, ...
  12. Hindi:जोड़, परिवर्धन, ...

Discover how Reverso redefines the dictionary

Go beyond “simple words”

Get more than a simple definition

Go from understanding to mastery